There is a scary hijacking sequence. A hijacker holds a flight attendant on the throat with a knife, A man behind another brutally kills a first class passenger with a knife and slides it to his carotid artery. Blood spurts and the man slides out from his seat onto the ground. The hijackers terrorize the passengers. Innocent passengers panic. People run out and the hijackers guard the second class threatening them with a bomb strapped around his waist and a knife.
A hijacker grabs an innocent wounded man and slams him into the ground. (He bleeds to death and blood is all over his shirt).
Alone, one hijacker pushes a food cart to the passengers holding them back using pepper spray, spraying two passengers. One man puts his hand on the food cart and the hijacker slaps his hand with a small knife. The passengers overpower him stretching his arm apart. The hijacker grabs a fire extinguisher and puffs it on the passengers attempting to hold them back.
The hijacker tilts the plane violently back and fourth, then we hear them collapse and struggle, people fall on the ground violently to push them back coming in the cockpit and tilts it again causing the people to go on top one another making it hard to go forward then raises the plane upwards to make it harder.
R violence type: blood and brutal.
There is a sequence in the airplane bathroom where a man constructs a fake bomb using batteries and uses it to scare the passengers.
A flight attendant has her throat slashed with a box-cutter (offscreen).
A bunch of passengers bludgeons a hijacker in the head with a fire extinguisher.
A hijacker has his neck snapped.
A hijacker holds a woman with a knife on her throat orders her to make the pilot open the door. She knocks the door the pilot opens and the two hijackers come in stabbing a pilot in the stomach (We hear groans) once both of them enter, one struggles with another pilot in the cockpit and one is stabbed to death and we hear a snap (presumably stabbed because we see his bloody shirt later) and dies.
Two dead bodies are dragged out of the cockpit of a plane and we see their blood-soaked shirts while two flight attendants in the first class see it.
A plane crashes killing everyone on board.
We see the impact of a plane crashing to the WTC and real footage from CNN showing the first attack.